GBEEN UANUBIKO 6BASBES. 213 



cially to sow with some of the larger and ranker plants, 

 which may serve to protect them, and to leave the 

 reader, who may be interested in experimenting in this 

 direction, to add to the mixtures according to his judg- 

 ment and pleasure, bearing in mind that when used for 

 the green manuring, neither the coarser plants nor the 

 grasses are allowed to blossom and go to seed, the 

 design being to turn them in before this stage of their 

 growth, in which case the ground is not injured by foul 

 seeds. Suppose, then, we take, as 



GBEEN UANTTBING OBASSES, 



One pound of Bristly Foxtail, 600,000 seeds. 



" « « Wood Hair Grass, 2,000,000 " 



" « " Tufted Hair Grass, 2,000,000 " 



« " " Meadow Soft Grass, 1,500,000 " 



" " « Perennial Rye Grass, 250,000 « 



« " " Chess, 150,000 « 



« " " Millet Grass, 1,200,000 " 



" " " Melic Grass, 500,000 « 



" " Tall Oat Grass, 350,000 " 



« " « Tickle Grass, 4,000,000 " 



These are some of the .wild grasses which will sug- 

 gest themselves to the mind of the reader, who has 

 made himself familiar with the natural history of the 

 grasses, as given in chapter first, and such as are 

 adapted for use on medium soils; and they may be 

 increased, as already intimated. They are all to be 

 found in the places indicated, their seeds collected and 

 saved for sowing as a top-seed with grains. One 

 pound of each is stated, for- the purpose of indicating 

 the number of seeds it contains. This number cannot, 

 of course, be strictly accurate, because it will always 

 vary a little, according to its cleanliness and freedom 

 from chaff; but it is sufficiently so for practical pur- 

 poses. Only about five million seeds are required for 

 an acre, so that the number of pounds needed to seed 



